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首页> 外文会议>International Congress of the Acarology >Control of two-spotted spider mite Tetranychus urticae Koch (Acari: Tetranychidae) on edible crops in glasshouses using two interacting species of predatory mite
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Control of two-spotted spider mite Tetranychus urticae Koch (Acari: Tetranychidae) on edible crops in glasshouses using two interacting species of predatory mite

机译：使用两种捕食性螨型相互作用的玻璃静脉中可食用作物对两斑蜘蛛螨Tetranychus urticae koch（acari：tetranychidae）的控制

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Current glasshouse biological control practice relies on regular prophylactic introductions of one or two 'best' species of natural enemy. Whilst this is effective for much of the time, occasional failures occur due to factors such as differences inresponse to seasonal changes in environmental conditions, and/or host-plant effects. This study aims to improve the control of Tetranychus urticae on edible crops in greenhouses by introducing a guild of predators, each ecologically adapted to a particular niche in the life cycle of the pest or the crop cycle of the host-plant. The activity and predatory behaviour of two predatory mite species (Phytoseiulus persimilis and Amblyseius califomicus) were studied to determine the effects of environmental aspects such as humidity and temperature levels in the presence of the prey T. urticae on tomatoes, aubergines, cucumbers and peppers. Host-plant species strongly influenced the performance of the predators with both species being most active on pepper, and least active on aubergines. When tested at three different humidity levels (30 percent, 65 percent and 90 percent r.h.) performance measures of P. persimilis such as distance covered, turning rate and speed of movement peaked at high relative humidityand high temperature levels. In contrast A. califomicus preferred low humidity levels and high temperature levels. Furthermore it was observed, that A. califomicus could survive longer periods on low prey density.
机译：目前的玻璃屋生物控制实践依赖于常规预防性介绍一个或两个“最佳”的自然敌人。虽然这对大部分时间都有效，但偶尔会发生由于差异差异为季节性环境条件的季节性变化和/或宿主植物效应等因素而发生的因素。本研究旨在通过引入捕食者共群，各种生态学适应于害虫生命周期的特定利基或宿主植物的生命周期中的特定利基或宿主植物的作物循环中的特定利基的控制对绿色和平的食用作物对绿色族的控制。研究了两种捕食性螨虫（Phytoseiulus Persimilis和Amblyseius Califomicus）的活性和捕食性行为，以确定环境方面如湿度和温度水平的影响，如西红柿，茄子，黄瓜和辣椒。宿主物种强烈影响了捕食者的性能，两种物种在胡椒上最活跃，最常用于茄子。当以三种不同的湿度水平（30％，65％和90％R.）进行测试时的P. Pissimilis等距离所覆盖，转速和运动速度在高相对潮湿的高温水平上达到峰值。相比之下，加利福尼比利优选的低湿度水平和高温水平。此外，观察到，A.加利福莫可以在低猎物密度上存活更长的时间。

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